Attempt to clarify installation instructions a little
[vchess.git] / client / src / translations / rules / Emergo / en.pug
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d2af3400 1p.boxed
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2 | Similar to Checkers, with prisoners stacked below capturers.
3
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4figure.diagram-container
5 img.img-center(src="/variants/Emergo/match_2004_U-con.jpg")
6 figcaption.text-center.
9aeba28a 7 [Wikipedia]
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8 Game played on an orthogonal depiction of a standard 9x9 Emergo board.
9
10p
11 | Nothing disappears in this game: captured pieces become part of the
12 | capturing unit. Therefore, a piece or unit will always be understood
13 | as a combination of W white (elementary) pieces and B (elementary) black
14 | ones, with
15 br
16 | W >= 0, B >= 0 and W + B >= 1.
17
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18p
19 | The 9x9 board is initially empty.
20 | Each player receives 12 stackable pieces, "in hand".
b27300c2 21 | At each turn, a player must pick an action among the followings:
d982fffc 22 ul
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23 li Enter a new piece (W + B = 1) on the board.
24 li Move a unit along diagonals, by one square.
25 li Capture something.
26
27h3 Entering moves
28
29p.
30 Introducing a piece such that the opponent can take it on next turn is
31 forbidden, unless another capture is already available.
32
33p At first move, white cannot place a piece at the central point.
34
35p.
36 If the opponent already placed all his pieces in hand, then a
37 "shadow piece" enters, formed by all the remaining units available
38 (thus in this case W + B > 1).
39
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40p.
41 While you have pieces in hand, none of your pieces can move on the board
42 unless they capture something.
43
b27300c2 44h3 Captures
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45
46p.
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47 Captures work exactly as in Checkers: by jumping over a diagonally adjacent
48 piece to land on a free square just behind.
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49 If a capture is possible, then it must be played; in this case no piece can
50 be introduced on the board.
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51 If after a capture another is possible with the same piece, it must also be
52 played — except if that implies turning at 180 degrees.
d982fffc 53
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54figure.diagram-container
55 .diagram.diag12
56 | fen:9/9/2a@1a@4/9/4a@4/3D@5/9/5A@3/6b@2 e3:
57 .diagram.diag22
58 | fen:9/9/2a@1a@4/9/4a@4/3D@5/4ba4/9/9:
59 figcaption.
60 Before and after black captures, jumping at the marked location.
61 The next white piece must be captured too.
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62
63p.
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64 Captures can be described formally as follows.
65 If, as white, W1/B1 jumps over W2/B2 at square S2 to land on S1', then
66 W1/(B1+1) arrives on S1' while W2/(B2-1) stays on S2.
d982fffc 67 If W2 = B2 - 1 = 0, nothing remains at the captured unit location.
b27300c2 68 As black: exchange W and B.
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69
70p.
71 In other words, each unit is a stack of friendly and enemy pieces, with
72 friendly pieces on top. After each capture, the prisoners part of the
b27300c2 73 stack is incremented, while the jailers quantity at the captured
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74 location decreases by one.
75
76p.
77 When several capturing chains are available,
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78 the player must select one of the longest (as in Checkers):
79
80figure.diagram-container
81 .diagram
82 | fen:9/9/2a@1a@4/9/2bb1a@4/3C@5/9/9/9:
83 figcaption.
84 From https://www.mindsports.nl/:
85 White's only option is to capture clockwise.
d982fffc 86
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87p.
88 A piece can be jumped over several times, as long as it contains
89 at least one enemy unit (controling it).
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90
91h3 More information
92
93p
b27300c2 94 | You are invited to visit the
d982fffc 95 a(href="https://www.mindsports.nl/index.php/arena/emergo/88-rules")
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96 | authors' website
97 | . The rules are also described on
d982fffc 98 a(href="http://www.iggamecenter.com/info/en/emergo.html") iggamecenter
b27300c2 99 | , where you can play Emergo.
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100
101p Inventors: Christian Freeling and Ed van Zon (1986)